• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The inventive programmable logic controller of floor lamps (18) is used for at least two light sources, so that they can be controlled asynchronously or regulated. Thus, depending on the daylight, only the less efficient indirect light component is dimmed up to 40% light output, and then the more efficient direct light component (19) from 100% to 3-0% light output together with the indirect light component (40) of 40 % dimmed to 0% light output and turned off.
    公开号:CH712086A2
    申请号:CH00244/16
    申请日:2016-02-25
    公开日:2017-08-31
    发明作者:Horath René
    申请人:Alteme Licht Ag；
    IPC主号:
    专利说明:

    Description [0001] This invention relates to daylight dependent economical control of floor lamps (Economical Daylight Regulation EDR). For this purpose, the direct and indirect light sources are controlled asynchronously and with a switch-on delay by means of a programmable logic controller due to directed light sensor technology. Office space today is mainly illuminated with autonomous floor lamps, which are equipped with LED bulbs. In contrast to the previously used compact fluorescent lamps, the new light sources such as e.g. LED bulbs or OLED bulbs targeted to emit the light in a defined direction, since they radiate the light only at a maximum angle of 120-180 ° and not as in the compact fluorescent tubes all around at an angle of nearly 360 °. These floor lamps are usually equipped, among other things, with daylight sensors, which allow the ambient brightness corresponding dimming of the light sources.
    In general, the total of at least two bulbs of a floor lamp operated by an electronic control gear, the dimming of the individual bulbs is carried out directly by PWM or Amplitudendimmung the control unit. The control unit can be dimmed by means of a manual pushbutton on the control unit, by an external push-button connected to the control unit or by a wireless digital interface with an external control unit. After the dimming function has been activated, the measured brightness value is stored as a setpoint value with the light sensor with a time delay. The control unit regulates or dims the lighting means as a function of the ambient brightness until the stored setpoint brightness value is reached. If the target brightness value is already reached by the ambient light, the lamps are dimmed down to 0% or switched off. With a time delay, the control unit disconnects the power supply to the operating device through a relay contact.
    It is accepted that the operating efficiency of the system light sources / operating equipment mitzunehmendem dimming level decreases. The energy requirement of a system operated in 1-3% mode is still up to 1-3 W per control gear and in standby mode approx.> 0.5 W. By connecting the power supply to the operating device through the relay contact, the standby power of the operating device be saved. The resulting effective standby power only results from the power requirement of the control unit itself and its optional radio interfaces.
    The control electronics can in combination with so-called dimmable electronic control gear and the dimmable LED bulbs to regulate the power from 100% to about 3-0%. All LED bulbs are dimmed synchronously. However, the operating efficiency of the system light sources / operating device deteriorates with increasing dimming level.
    Office space today are largely illuminated with floor lamps. They offer individuality and mobility and, if designed accordingly, potential for saving energy. The floor lamps, which are used in the office area, are now operated almost exclusively with several LED bulbs, which are installed on the one hand directed downwards as direct and upwards as indirect light. A lateral coupling of the light and deflection of the light up or down is another possibility. These light sources offer high efficiency, good color rendering and dimming capability (PWM, amplitude dimming). The latter makes it possible to regulate the lamps / floor lamps in rooms with daylight content in accordance with the needs or the ambient brightness. So they are dimmed at dawn, later turned off and turned back on after dusk and dimmed. With average office use, a dimmable floor lamp will rarely be used in 100% operation. And when the sky is overcast, often operating in the partial load range from 0 to 50%. The floor lamps are synchronously dimmed in relation to the indirect and direct light component. In the application, however, the Indirektlichtanteil is highly dependent on the ceiling height and the reflectance of the ceiling, the direct light can be used directly without further large losses.
    The object of the invention is therefore to provide a control of a floor lamp, which better tracks the light by regulating the continuously changing daylight and at the same time makes it possible to reduce the associated decrease in the operating efficiency and thus save electrical energy. In addition, the more efficient in the application and more independent of the space geometry direct light has long been used and dimmed only in the lower part load range, which should lead in the energy balance to a lower system performance at the same illumination of the work table.
    This object is achieved by a programmable logic control of floor lamps with at least two bulbs, which are controlled asynchronously or regulated, so daylight depending on need only the less efficient in the application Indirektlichtanteil up to 40% light output is dimmable, and then the in the Application more efficient direct light ratio from 100% to 3-0% light output, together with the indirect light ratio of 40% down to 0% light output dimmable and can be switched off. In order to operate the luminaire efficiently in the partial load range, this control initially dimms only the indirect light sources that shine upwards, without dimming the down-facing direct light sources.
    The invention will be described in more detail with reference to some figures and the function of the programmable logic controller will be explained with reference to these figures.
    It shows:
    Fig. 1: an asynchronous dimming behavior shown schematically;
    Fig. 2: The control components shown schematically;
    Fig. 3: The control for an indirect and a direct light source shown schematically;
    Fig. 4: The lamp frame with the components for the controller;
    Fig. 5: A floor lamp for a desk in practical use;
    Fig. 6: A lamp with up and down radiating LEDs;
    FIG. 7 shows a luminaire with LEDs emitting upwards and downwards by reflection at a reflector; FIG.
    Fig. 8: A lamp as shown in Figure 7, with side light coupling fiber optic plates, with upwardly and downwardly radiating by reflection LEDs, but with a reflector separation layer.
    9 shows a schematic representation of the dimming behavior and the power savings that can be achieved with it;
    10 shows a random power on circuit in the form of a functional scheme of the switch-on delay;
    Fig. 11: An Oriented and Calibrated Light Sensor with graphics on the function of the directed light sensor and
    Leuchtenkalibration.
    A conventional control electronics can in combination with so-called dimmable electronic control gear and the dimmable LED bulbs to regulate the light output probably from 100% to 1%. But all light sources are dimmed synchronously. However, the operating efficiency of the system with respect to the indirect / direct light source deteriorates as the dimming level increases because the more efficient direct light in the application is dimmed in synchronism with the less efficient indirect light to readjust to the desired brightness level.
    This effect is counteracted according to the invention by the developed programmable logic controller dimming the indirect or direct light sources asynchronously. Thus, a daylight-dependent economical control of the floor lamps is achieved (Economical Daylight Regulation EDR). For this purpose, the direct and indirect light sources are controlled asynchronously and with a switch-on delay by means of a programmable logic controller due to directed light sensor technology. In order to operate the luminaire in the optimized partial load range, the inefficient indirect light is initially dimmed to a level of 40%. The more efficient direct light component is then dimmed down from 100% to 0% along with the less economical indirect light. The daylight-dependent floor lamp control with asynchronous light source regulation thus takes the following effect into account: The electronics control each light source separately. Thus, by means of appropriate software, first the indirect light source and then the other direct light source can be activated or dimmed. For the 40% direct light operation of the floor lamp, the direct light can therefore be operated at 100%, while the indirect light is dimmed. In <40% indirect light mode of the floor lamp, the indirect and direct light is dimmed together. The achievable energy savings increase with increasing dimming levels to over 10-30% compared to similar lighting systems.
    Prerequisite for the asynchronous regulation is the hardware-side possibility of the control electronics to control the individual light sources separately. The electronics measures via a light sensor by means of e.g. a photo diode the lighting conditions in the range of the floor lamp and compares the measured value with the DESIRED value, i. the factory default or the user-defined value. By suitable control or regulation of the light sources, the illumination intensity measured via the photo diode is readjusted over a wide range to the DESIRED value by an electronic processor / control circuit integrated in the luminaire control.
    The maximum possible total lighting power of 100% is then given when both bulbs are operated by the controller with the defined full load. To calibrate the individual channels, the bulbs are operated at full load with a PWM signal to ensure the closest possible tolerance in terms of light intensity can. Alternatively, a calibration of the individual channels by a specific calibration per channel by amplitude Dimming done.
    The system performance can be significantly reduced by the LED technology by the more efficient bulbs compared to the previous compact fluorescent tubes. This has a positive effect on the maximum number of luminaires per circuit breaker. With the LED bulbs, however, there is a high inrush current when switching on, which can temporarily become too high and has a negative effect on the maximum number of luminaires per circuit breaker. In practice, so usually the maximum allowable power per circuit breaker can not be exhausted because, for example, in a power failure or when switching on the power supply, the resulting accumulation of inrush currents of the individual lights to trigger the circuit breaker leads because all lights turn on at the same time. With the RPO (Random Power On) technology this effect can be countered. The controller has its own power supply or driver (AC / DC converter). With a relay, the operating device is switched on for the operation of the LED when light is required. In the event of a power failure, the luminaire will be operated again as it was before the power failure, ie. if it has lit earlier, the light will turn back on, but if it does not light, it will not turn on. This function can be used to minimize the number of standing lamps that switch on. In addition, the luminaires switch on with a time delay using a random algorithm, so that accumulation of the inrush currents can be statistically neglected or limited to a minimum. By switching off via relay of the operating device, the standby power can also be reduced to a minimum.
    The light sensor is necessary for readjustment to the stored target brightness value when the ambient light or daylight changes, so that a constant level of illumination can be guaranteed on the table. The majority of the light sensor is located below the lamp head and is aligned directly downwards. There are great differences in the quality of the light sensors in this respect, especially with regard to the detected area, which usually measures only a small area directly below the light. Depending on the position of the lamp and the surface quality of the area being measured, e.g. For a black or white table, the light and ambient light have a different influence on the measured brightness value. Here arises the problem that the luminaire regulates differently depending on the given surface and space qualities. The average illuminance of 500lx prescribed by the standard in the field of visual task can not be fully guaranteed in this respect or only with strong general over-illumination.
    The entire light of all light sources used is always composed of the two shares direct light and indirect light. As shown schematically with reference to FIG. 1, with an asynchronous control of a floor lamp in the application, the more efficient direct light component of each individual light source can be operated as long as possible during the dimming process with 100% light output. The more inefficient indirect light of each light source, which depends on the degree of re fl ection of the ceiling as well as the ceiling height, is therefore first dimmed and finally dimmed to 0% together with the direct light.
    2 shows a schematic illustration of the control electronics for this control. It includes a rotary potentiometer 1 for setting the overrun time and the Areatest motion sensor. The controller further includes a PIR motion sensor 2 which in its sensitive direction aligns ports 3 for the bulbs. 4 designates the push-button connections for dimming and switching on. A connection 5 serves to supply with electric current. A driver 6 provides power to the controller. A relay 7 is used to turn the operating device on. There are other primary terminal drivers 9 and a secondary terminal driver 8. The light sensor 10 is used for continuous measurement of the lighting conditions. A button 11 with status LED is used for dimming and for switching the control on and off.
    3 shows a controller 15 for a direct-13 and a direct light source 12 shown schematically. The controller 15 controls the indirect light source 13, which radiates upward on a ceiling, and the direct light source 12, which radiates downward onto a work surface. It is supplied by the signals of a light sensor 10 and a motion sensor 2. Next is a supply 5 with electrical current available and a control gear 14, which is switched on and off by means of a relay 7.
    Fig. 4 illustrates the lamp frame with the components of the control. It consists of a lamp frame head 16, in which the bulbs 12, 13 are housed. The control electronics 15 controls these bulbs 12, 13. The operating device 14 for the supply of the lamps is housed as shown here in the lamp frame. A standpipe attachment 17 allows the luminaire frame to be mounted on a standpipe.
    Fig. 5 shows a floor lamp 18 for an office or work table 21 in practical use. As can be seen from this figure, a direct light portion 19 shines directly on the work table 21, while the Indirectlichtanteile 20 are first reflected on the wall and or ceiling and only then radiate on the worktable surface. 22 denotes the visual task area on the table surface.
    Fig. 6 shows a luminaire with upwardly radiating LEDs 23, which are arranged on a direct light LED panel 30, and the downwardly radiating LEDs 24 corresponding to an indirect light LED panel 25. All these components are housed in the lamp head 26.
    FIG. 7 shows an alternative luminaire head 26 with a reflector 31 for reflecting the light beams of the LEDs 23, 24 emitting upward and downward.
    Fig. 8 shows a lamp as shown in FIG. 7, with by reflection by the light guide plates 32, 33 upwardly and upwardly and downwardly emitting LEDs 23, 24, but with a reflector separation layer 31, so that these two light components always clean are separately controllable.
    In Fig. 9 is a schematic representation of the dimming behavior and the achievable power savings shown. As can be seen, the luminous efficiency curve is linear between 100% and 0% with a conventional luminaire and dimming, while asynchronous dimming according to this control is not linear, but describes an arc and falls below the line of linear luminous efficacy. The difference reflects the saving in required power.
    Fig. 10 shows a random power on circuit in the form of a functional scheme, with the components power supply, driver, control, time delay and time slot selection, the relay, control gear and the bulbs, in the switched as well as in the switched off state.
    Finally, FIG. 11 shows the detection range of the light sensor 10, in comparison with a conventional light sensor system 27 and a directed light sensor system 28 (Oriented and Calibrated Light Sensorie OCLS). The light sensor detects the light frame head 16 from exactly the desired area 28 of the work table, and the light intensity is precisely matched to the time of day or to the brightness of the room and changes with the time of day or otherwise occurring darkening automatically. With an additional sensor 35, the light brightness radiating onto the work surface can be continuously determined. So, when the sun shines into the room, and clouds suddenly rise or a thunderstorm comes up and it gets surprisingly dark during the day, the controller reacts automatically and compensates for it. The determined brightness values are then continuously calculated with the detected measured values of the light sensor 10 and the maximum light influence of the luminaire. The maximum light influence of the luminaire is determined by calibrating the luminaire, i. the difference in brightness is measured when the bulbs are switched off and the light output is full.
    When using LED light sources and their operating equipment usually creates a short-term very high current peak when switching. When defining the maximum number of luminaires per circuit breaker, it is therefore usually not the cumulative total output of the floor luminaires that determines the cumulative inrush current peaks. The control according to the invention optimizes and reduces the cumulation of the inrush current peaks by the use of a relay and its switch-on algorithm. This effect of too high a single current peak is counteracted, in which the newly developed controller individually controls the light sources and asynchronously dims.
    The separation of the Indirektlicht- or direct light component can be done as shown by down and up shining LED bulbs, by laterally shining LED bulbs, which with reflectors separately divert the light on the one hand upwards and downwards, or by two superimposed edges feeding light guide plates done. With the Oriented and Calibrated Light Sensor (OCLS) technology, it is possible to detect the influence of the natural light and thus to ensure the minimum requirement of 500lx by optimizing the dimming curve. By manually calibrating the luminaire control in a special calibration mode, the dimming curve can be adapted to the outside conditions. This is ensured by rapid switching on and off of the indirect and direct light component. The maximum or minimum influence or brightness value of the light sensor on the luminaire control or an external sensor (by wireless transmission of the measured data to the control) is measured. From this data, the maximum brightness difference or light influence of the luminaire can be calculated. With this data, the stored dimming curve is demensprechend optimized and ensures the minimum illuminance of 5001X. In addition, the detection range of the light sensor is aligned as broadly as possible by the primary optics on the area of the visual task 28 (FIG. 11) at the work table and an average brightness value is determined.
    In practice, mostly for cost reasons 2er job stand lamps are used. Today, more and more height-adjustable tables are being used in the offices. Since the floor lamps only have one light or motion sensor, it is not possible to have separate control or adapted lighting per workstation. This has the consequence that the height adjustment of a workplace, the situation may occur that the second workplace is insufficiently lit or too well lit.
    With an Oriented and Calibrated Light Sensor (OCLS) technology can be ensured by using additional light, distance, but also motion sensors a separate and optimized readjustment per workstation. The additional sensors are connected either directly to the luminaire head or via an external sensor with wireless data transmission to the controller. A specific target brightness value per workstation can be stored in the control. The storage takes place after a time delay after manual dimming.
    With an asynchronous dimming behavior, therefore, the more efficient direct light component can be used as long as possible. The more inefficient indirect light component is first dimmed, which leads to energy savings with the same illumination quality of the work surface. In addition, with a time delay, the controller disconnects e.g. by a relay contact, the power supply from the operating device in order to save the standby power of the operating device in addition. The time delay is based on a random algorithm to minimize accumulation of inrush current peaks.
    Digit List 1 Rotary potentiometer 2 Motion sensor 3 Connections Illuminant
    权利要求:
    Claims (10)
    [1]
    4 Pushbutton connections 5 Connection for supply 6 Driver / AC / DC converter of the controller 7 Relay 8 Secondary connection driver 9 Primary connection driver 10 Light sensor 11 Button with status LED 12 Direct light source 13 Indirect light source 14 Operating device 15 Control 16 Luminaire frame head 17 Standpipe attachment 18 Floor lamp 19 Direct light component 20 Indirect light component 21 Worktable 22 Visual task area 23 Upwardly emitting LEDs 24 Downwardly emitting LEDs 25 Direct light LEDs 26 Light head 27 Detection area of an unaddressed light sensor 28 Desired detection area of the light sensor (OCLS) 29 Detection center / focus of a non-directional light sensor 30 Indirect light LED panel 31 Reflector separation layer 32 Light guide plate indirectly 33 Light guide plate directly 34 Detection center / focus of a directional light sensor (OCLS) Claims
    1. Programmable logic control of floor lamps (18) with at least two bulbs (12,13), which are controlled asynchronously or regulated, so that daylight only needs the first ineffective in the application Indirektlichtanteil up to 40% light output is dimmable, and then the in the application more efficient direct light component from 100% to 3-0% light output can be dimmed down and switched off together with the indirect light component of 40% to 0% light output.
    [2]
    2. Programmable logic controller for floor lamps (18) having at least two light sources (12, 13) according to one of the preceding claims, characterized in that by means of the control with increasing or decreasing daylight level based on the stored target brightness value, the light intensity adjustable to a defined brightness level is, and the target brightness value with manual operation of the dimming function is automatically stored with a time delay.
    [3]
    3. Programmable logic controller for floor lamps (18) having at least two light sources (12, 13) according to one of the preceding claims, characterized in that to protect the light source and to improve the light ergonomics, the bulbs in the automatic on and off each by dimming with a can be switched on or off for a certain period of time, this time duration or follow-up time being determined by means of a potentiometer of 2 min. up to max. 30 min. is adjustable.
    [4]
    4. Programmable logic controller for floor lamps (18) having at least two light sources (12, 13) according to one of the preceding claims, characterized in that the lamp is so operable after a power failure by the controller by an integrated memory that it turns on when they was previously switched on, or does not switch on if it had not been switched on before.
    [5]
    5. Programmable logic controller for floor lamps (18) having at least two light sources (12, 13) according to one of the preceding claims, characterized in that at full load, the lighting means, controlled by the controller, are operable with a PWM signal, so that the power the individual lamps can be calibrated, or that a calibration by amplitude dimming is applicable, via which the respective lamps can be operated differently at full load.
    [6]
    6. Programmable logic controller for floor lamps (18) with at least two light sources (12, 13) according to one of the preceding claims, characterized in that in a multiple workplace light by a plurality of separate light and motion sensors, the lamps per workstation are specifically and independently controllable , for switching on / off and dimming, and the bulbs also by manually operating controls such as The stand-alone brightness value per workstation can be stored separately with a time delay, and wherein by means of distance sensors the height of the workbench can be determined and the light output at height-adjustable tables on the stored target Brightness value is adjustable.
    [7]
    7. Programmable logic controller for floor lamps (18) having at least two light sources (12, 13) according to one of the preceding claims, characterized in that the automatic switching by a random-based power-on algorithm is time delayed effected to cumulate on the inrush currents to reduce.
    [8]
    8. Programmable logic controller for floor lamps (18) having at least two light sources (12, 13) according to one of the preceding claims, characterized in that in a floor lamp, the operating device is switched off by a relay on the controller, and switching off in the daylight-dependent regulation with a time delay can be effected, so that the elimination occurs only when the target brightness value is reached by the ambient light, and if the target brightness value is not reached by the ambient light, the switching on of the operating device by the relay without time delay is effected.
    [9]
    9. Programmable logic controller for floor lamps (18) with at least two light sources (12, 13) according to claim 1, characterized in that a non-linear dimming curve can be generated with it by the dimming curve is optimized so far that in the visual task on the light intensity a constant illumination intensity can be readjusted and, depending on the brightness of the table surface, a specific dimming curve can be stored, with a specific dimming curve or calibration by determining the maximum light influence of the luminaire in relation to the measured brightness value of the light sensor.
    [10]
    10. Programmable logic controller for floor lamps (18) with at least two light sources (12, 13) according to one of the preceding claims, characterized in that the dimming behavior or the dimming curve by calibration depending on the brightness of the table surface and the space geometry, namely the room size and the degree of reflection of the surrounding surfaces is adaptable and optimizable.
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    引用文献:
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    法律状态:
    2020-09-30| PL| Patent ceased|
    优先权:
    申请号 | 申请日 | 专利标题
    CH00244/16A|CH712086B1|2016-02-25|2016-02-25|Programmable logic control unit for daylight-dependent control of an associated floor lamp.|CH00244/16A| CH712086B1|2016-02-25|2016-02-25|Programmable logic control unit for daylight-dependent control of an associated floor lamp.|
    EP17151639.6A| EP3211972B1|2016-02-25|2017-01-16|Floor lamp comprising a programmable control unit for energy efficient and ambient light dependent control of direct illumination and indirect illumination|
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